#include "test_first.h"
#include "stdio.h"
#include "stdlib.h"

int call_subfunc(void)
{
    int origin_param;
    char output_buf[10] = {0};
    int len;

    len = snprintf(output_buf, 10, "->");
    printf("len:%d data:%s\r\n", len, output_buf);
    origin_param = -1;
    printf("call func\n");
    return origin_param;
}

